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o e M. M. BARRETT & J. F. DALY.

VALVE REG-U LATING GOVERNOR FOR GAS ENGINES. No. 463,436.

Patented Nov. 17, 1891.

NITED STATES ATENT FFICE MORA M. BARRETT AND JOHN F. DALY, OF SAN FRANCISCO, CALIFORNIA, ASSIGNORS TO THE PACIFIC GAS ENGINE COMPANY, OF SAME PLACE.

VALVE-REGULATING GOVERNOR FOR GAS-ENGINES.

SPECIFICATION forming part of Letters Patent No. 463,436, dated November 1'7, 1891.

Applicationfiled May 28, 1891. Serial No. 394,415. (No model.)

To all whom it may concern.-

Be it known that we, MORA M. BARRETT and JOHN F. DALY, citizens of the United States, residing at San Francisco, in the county 5 of San Francisco and State of California, have invented certain new and useful Improvements in Valve Regulating Governors for Gas-Engines; and we do hereby declare the following to be afull, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

Our invention relates to certain new and useful improvements in speed-regulating attachment for gas-engines, which consists in the arrangement of parts and details of construction, as will be hereinafter more fully set forth in the drawings, described, and pointed out in the specification.

Our invention consists in-providing a speed or gas controlling governor whereby unnecessary loss or expenditure of power to overcome the compression of air contained within the engine-cylinder is obviated and inflow of gas through the inlet-valve may be readily controlled, so as to provide for the least possible consumption ofgas in the running of the engine.

. The present invention relates more particularly to certain improvements in the governor, fully set forth and described in the application filed on the 16th day of April, 1891, Serial No. 389,255 5 and it consists in providing a governor which shall be more sensitive to the action of the engine, less expensive, and more effectual in its operation than the governortherein set forth.

Referring to the drawings forming a part of this specification, wherein similar letters of reference denote correspondingparts throughout the several views, Figure 1 is a front elevation of a gas-engine, showing controlling governor applied thereto; Fig. 2, a side view thereof; Fig. 3, a front detail of the governor, and Fig. 4. a detail side elevation of Fig. 3.

The letter A indicates the frame of the gasengine, and O the operatingshaft, working in suitable bearings, which operates the enginepiston. (Not shown.) Secured to said shaft is the operating-cam C, which is adapted to open the exhaust-valve through the medium of valve-stem C similar to thatset forth andfully described'in application Serial No. 389,255, and consequently need not herein be specifically described. Upon the outer end of shaft is rigidly fastened collar D, to which is pivotally secured the plate-governor D, which is held at an incline by means of springs a, connected to lower end thereof and the sleeve. Mova- 6o bly located upon said shaft between earn 0 and collar D is the sleeve E, which is'provided with circular groove 1). Connection is formed between the sliding sleeve and plategovernor by means of link or arm 0, one end of which is secured to the sleeve, while the other projects through said governor. Within the circular groove 1) works the lower end of spring-plate cl, the upper end of which is connected to the pivoted arm or stem 6, secured to valve-stem guide f. The upper end of said pivotally-working stemis adapted to move heneath collar f as the valve-stem is uplifted, and thus hold the exhaust open until the engine has freed itself of spent gas. As the engine speed increases, and plate-governor is thrown outward by centrifugal force, and contacting with enlarged end 0 of arm 0 moves sleeve E outward, which, carrying spring-plate Working in circular groove therewith, causes the same to bear or press inward upon stem 6, thereby forcing its upper end below collar f,

so as to uphold the valve-stem. As the engine speed-decreases, resiliency of springs a causes the plate-governor to assume its incline position, and pressure of spring-plate d moves or forces sleeve E inward, thus releasing the pivoted stem from beneath collar of valvestem and permitting the exhaust-valve to seat.

itself. It will thus be observed that as the 0 plate-governor moves from an incline to a vertical position by increased speed of the enginet-he exhaust-valve is held open,while upon reverting to an incline position by decrease in the engines speed exhaust-valve is reseated.

Our governor may be either a wing, disk, or other governor so regulated as to be at an angle when at rest and by centrifugal force to move outward, and by its inward or out ward movement close or to maintain the ex- [00 haust-valve open. By any suitable mechanism connection may be made between inlet or gas valves and plate-governor, so that said valve may be held open or closed by the movement of the governor for the purpose of controlling the flow of gas into the combustionchamber.

Having thus described our invention, what we claim as new, and desire to secure protection in by Letters Patent of the United States, is

1. In a gas-engine, the combination of a valve-stem having a collar thereon, a pivoted arm or stem to engage and disengage said 001 lar, a spring-plate secured to the lower end of the pivoted arm, an operating-shaft, a sleeve loosely mounted on said shaft and provided with a peripheral groove to receive the lower end of the spring-plate, a plate-governor pivoted to the operating-shaft, a link or arm connecting the upper portion of the plate with the movable sleeve, and springs connecting the lower end of said plate with the shaft and normally maintaining the same at an incline, substantially as set forth.

2. In agas-engine, the combination of valveoperating mechanism, an operating-shaft, a sleeve loosely mounted on said shaft and provided with a peripheral groove within which valve-operating mechanism Works, a collar rigidly secured to the outer end of the operating-shaft, a plate-governor provided with an aperture through which the collar passes, the plate being pivoted to the collar at diametrically-opposite points, a link or arm having one end connected to the movable sleeve and its opposite end projecting through the plate-governor with its extremity enlarged, and springs connecting the lower end of the plate with the collar and normally holding said plate in an inclined position, substantiallyas set forth.

In testimony whereof we alfix our signatures in presence of two witnesses.

MORA M. BARRET". JOHN F. DALY. \Vitnesses:

N. A. ACKER, .T. W. KEYS. 

